Light-emitting diode



FIG. 1 is a perspective view showing an embodiment of my design for a light-emitting diode;

FIG. 2 is a top plan view of an embodiment of my design for a light-emitting diode;

FIG. 3 is a bottom plan view of an embodiment of my design for a light-emitting diode;

FIG. 4 is a front elevation view of an embodiment of my design for a light-emitting diode;

FIG. 5 is a rear elevation view of an embodiment of my design for a light-emitting diode;

FIG. 6 is a right elevation view of an embodiment of my design for a light-emitting diode; and,

FIG. 7 is a left elevation view of an embodiment of my design for a light-emitting diode. 

The ornamental design for a light-emitting diode, as shown and described above. 